72111766339 has 2 divisors, whose sum is σ = 72111766340. Its totient is φ = 72111766338.

The previous prime is 72111766289. The next prime is 72111766361. The reversal of 72111766339 is 93366711127.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72111766339 - 2⁷ = 72111766211 is a prime.

It is a super-4 number, since 4×72111766339⁴ (a number of 45 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (72111766379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36055883169 + 36055883170.

It is an arithmetic number, because the mean of its divisors is an integer number (36055883170).

Almost surely, 2^72111766339 is an apocalyptic number.

72111766339 is a deficient number, since it is larger than the sum of its proper divisors (1).

72111766339 is an equidigital number, since it uses as much as digits as its factorization.

72111766339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 46.

The spelling of 72111766339 in words is "seventy-two billion, one hundred eleven million, seven hundred sixty-six thousand, three hundred thirty-nine".